==================
tunnel = yes
==================

Tunnel yes

---

(client_config
  (tunnel
    (tunnel_value)))

==================
tunnel = no
==================

Tunnel no

---

(client_config
  (tunnel
    (tunnel_value)))

==================
tunnel = point-to-point
==================

Tunnel point-to-point

---

(client_config
  (tunnel
    (tunnel_value)))

==================
tunnel = ethernet
==================

Tunnel ethernet

---

(client_config
  (tunnel
    (tunnel_value)))

==================
use irregular casing
==================

tUNnel yes

---

(client_config
  (tunnel
    (tunnel_value)))

==================
can use equals sign
==================

tUNnel=yes

---

(client_config
  (tunnel
    (tunnel_value)))

==================
can use equals sign with whitespace
==================

tUNnel = yes

---

(client_config
  (tunnel
    (tunnel_value)))

==================
can be specified after host
==================

Host example.com
  Tunnel no

---

(client_config
  (host
    (host_value))
  (tunnel
    (tunnel_value)))

==================
detect invalid values
==================

tUNnel ja

---

(client_config
  (ERROR
    (UNEXPECTED 'j')))
